采用超声波筛分、X射线小角散射及化学溶解等方法,分析了铁素体球铁中VC的粒度分布和析出规律。结果表明:VC的粒子直径有很宽的分布范围,但超细VC占粒子总数的绝大部分;超细VC弥散分布于铁素体基体,随球铁含钒量增加,超细VC量趋于饱和,这部分碳化物在球铁的强化中起主要作用。
Size distribution and precipitation of VC particles in the ferritic nodular cast iron have been examined by techniques of ultrasonic screening, small angle X-ray scattering and chemical dissolution.The VC particles are sized over a wide range. The superfine ones, dispersed in the ferrite matrix, are the large majority. A saturated dispersion with ultrafine VC particles may be approached as the increasing of V content in the iron. This seems to play an important role in the precipitation strengthening for ferritic noldular cast iron.
参考文献
| [1] | |
| [2] | |
| [3] | |
| [4] | |
| [5] | |
| [6] |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%